|
Powersoft K10 on labs |
Post Reply 
|
| Author | |
jonminns 
Old Croc 
Joined: 13 April 2008 Location: United Kingdom Status: Offline Points: 1877 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Powersoft K10 on labsPosted: 04 February 2010 at 6:56pm |
|
Evening all
Considering that the K10 outputs 5kw/channel @ 2r, would it therefore work to connect lab drivers in series internally and run 4 labs (8 drivers) per channel of a K10. This still works out to be 1250w per box which is enough? Cheers Jon
|
|
|
4 ohms is for wimps
|
|
 |
|
|
cilla.scope
Old Croc
Legs all the way to her bottom.... Joined: 02 October 2009 Status: Offline Points: 2954 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 7:13pm |
|
yep, will be fine, called "series-parallel" . .. i am assuming the drivers are normally 4R wired in parallel in the labs to give 2R? and you were considerign wiring them up in series internally to give 8R? (4 x 8R in parallel would give 2R overall) which woud give you your 1250W a box
you dont need to do that .... just but two 2R boxes in series giving 4R, and then paralell up the two 4R lots of two boxes ... giving 2R again, job done. depends whats more effort, butchering up some leads or opeing up all the cabs .. either way, elecrically the result is the same |
|
|
My girlfriend thinks I'm a stalker.
Well, she's not exactly my girlfriend yet ... |
|
|
|
|
toastyghost
The 10,000 Points Club 
Joined: 09 January 2007 Location: Manchester Status: Offline Points: 10932 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 7:26pm |
|
Both the LAB12s in a LAB horn are wired in parallel to give an impedance of around 4 ohms per cab I believe.
|
|
|
|
|
cilla.scope
Old Croc
Legs all the way to her bottom.... Joined: 02 October 2009 Status: Offline Points: 2954 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 7:45pm |
|
in that case ....
they will be 8R drivers, so wired as 2 in series in each box will give 16R, 4 boxes in a parallel will give 4R again (if doing thebox re-wire thing) alternatively ... putting a 4R box in series with a 4R box, gives 8R ... and then stacking thse two in parallel gives you yor 4R again. a K10 should deliver about 2500W into 4R, which split across 4 boxes wont be enough :( |
|
|
My girlfriend thinks I'm a stalker.
Well, she's not exactly my girlfriend yet ... |
|
|
|
|
tallmike
Old Croc
Joined: 18 September 2007 Status: Offline Points: 2684 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 10:46pm |
|
|
|
|
|
jonminns
Old Croc
Joined: 13 April 2008 Location: United Kingdom Status: Offline Points: 1877 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 10:47pm |
|
They're actually 6 ohm drivers but the pressure in the box brings them up to around 8 ohm each
Ah ferk... for some reason i was thinking i could get a box to be 8 ohm Maybe there's a 4 ohm version of the lab12 - that'd be useful. But isn't there some issue with using 4 ohm drivers?
|
|
|
4 ohms is for wimps
|
|
|
|
|
tallmike
Old Croc
Joined: 18 September 2007 Status: Offline Points: 2684 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 10:50pm |
|
You maybe need to look at two amps that will bridge into 4R.
Couple of new FFAs Jon?
Or maybe some K3s or K6s?
|
|
|
|
|
Spesh
Old Croc
Joined: 15 July 2007 Location: Surrey Status: Offline Points: 1606 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 10:58pm |
Unfortunately I don't think there is a 4ohm version. Like you say, the load they actually present when inside the labhorn is much closer to 8 ohms per driver. They're really quite an odd box in terms of power/impedance.
|
|
|
|
|
jonminns
Old Croc
Joined: 13 April 2008 Location: United Kingdom Status: Offline Points: 1877 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 11:06pm |
|
How are you getting on with yours spesh, what do you power them with? |
|
|
4 ohms is for wimps
|
|
|
|
|
tallmike
Old Croc
Joined: 18 September 2007 Status: Offline Points: 2684 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 11:07pm |
|
K20 would solve that problem Jon :)
|
|
|
|
|
Spesh
Old Croc
Joined: 15 July 2007 Location: Surrey Status: Offline Points: 1606 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 11:33pm |
|
I'm running 4 labs per 4050HD.
To be perfectly honest, I was a bit worried that the 4050's wouldn't have enough power for 2 ohm stereo on Lab's, but to my surprise they actually deal with it quite well. They sound much better than the PL4's running the same setup and there's actually a surprising amount of weight behind the sound.
That said, I still think I'd be better off with a pair of 5000VZ/Inf8's. So needless to say that will be an upgrade coming quite shortly. I fancy another pair of Floods aswell, so I think the bank balance is gonna take a bit of a rinsing. Edited by Spesh - 04 February 2010 at 11:34pm |
|
|
|
|
Ben_Lawrance
Young Croc 
Joined: 12 January 2006 Location: Brighton Status: Offline Points: 919 |
Post Options
Thanks(0)
Quote Reply
Posted: 04 February 2010 at 11:35pm |
|
If you want to know about Labs and Powersoft, speak to Jeff Nine Bar.
|
|
|
|
|
Post Reply
|
|
| Tweet |
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Topic Options
cilla.scope wrote: